5236 Biology Praxis Exam Questions With 100% Correct Answers

5236 Biology Praxis Exam Questions With 100% Correct Answers What is Interphase? - answer- mainly growth of a cell occurs in this phase rather than cell division - most cells live here - except cancer What is Mitosis? - answeractive cell division What is the G1 phase (growth phase)? - answer- Occurs within interphase - most of cell's life - more organelles & proteins What is the S phase (synthesis)? - answer-DNA replication of 23 pairs (half from mom & half from dad) - results in 46 pairs What is the G2 Phase (Growth Phase 2)? - answer-more directly preparing for M -make microtubules What is the G0 phase? - answer-no more cell division - cells just grow - ex. neuron What is a Niche? - answerAn organism's particular role in an ecosystem, or how it makes its living. What is an Ecosystem? - answerA biological community of interacting organisms and their physical environment. What is Abiotic? - answerNon-living things What is Biotic? - answerliving things What is a Biome? - answerA group of ecosystems with similar climates and organisms What is a Community? - answerAll the different populations that live together in an area What is a Species? - answerA group of similar organisms that can breed and produce fertile offspring. What is Binary fission? - answerA form of asexual reproduction in single-celled organisms by which one cell divides into two cells of the same size (usually in prokaryotes) What is External fertilization? - answerFertilization that occurs outside the body of an organism. The sperms and eggs are released in an external environment. Usually requires a body of water Who is Antoni van Leeuwenhoek? - answerHe discovered both protists and bacteria. Advancing the field of microscopy through the discovery of microorganisms. What is Commensalism? - answerA relationship between two organisms in which one organism benefits and the other is unaffected What is Mimicry? - answerThe resemblance of one species to another species What is Mutualism? - answerA relationship between two species in which both species benefit (symbiotic relationship) What is Parasitism? - answerA relationship between two organisms of different species where one benefits and the other is harmed What are three essential elements for plant growth that are obtained primarily through the roots? - answer- Magnesium - Nitrogen - Potassium What is Intraspecific competition? - answerCompetition between members of the same species. Ex: Two male red deer in competition for a mate What are the Significant Figure Rules? - answer1. non-zeros are always significant 2. zeros between two other sig figs are significant 3. all final zeros after the decimal point are significant 4. zeros used solely for spacing the decimal point are not significant unless a decimal point is present What are the 8 levels of Taxonomic Hierarchy? (Hint: Dear King Phillip Came Over For Great Soup) - answerDomain, Kingdom, Phylum, Class, Order, Family, Genus, Species